66799011 has 8 divisors (see below), whose sum is σ = 89124624. Its totient is φ = 44503040.

The previous prime is 66799009. The next prime is 66799043. The reversal of 66799011 is 11099766.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 66799011 - 2¹ = 66799009 is a prime.

It is not an unprimeable number, because it can be changed into a prime (66799111) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1470 + ... + 11651.

It is an arithmetic number, because the mean of its divisors is an integer number (11140578).

Almost surely, 2^66799011 is an apocalyptic number.

66799011 is a deficient number, since it is larger than the sum of its proper divisors (22325613).

66799011 is a wasteful number, since it uses less digits than its factorization.

66799011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14821.

The product of its (nonzero) digits is 20412, while the sum is 39.

The square root of 66799011 is about 8173.0661932961. The cubic root of 66799011 is about 405.7482706734.

The spelling of 66799011 in words is "sixty-six million, seven hundred ninety-nine thousand, eleven".